Here're the Microsoft TechEd 2010, New Orleans, conference video, featuring interviews of a few of the Exchange Server Program Managers and Technical Managers:
iCal and Calendar Publishing- Adam Glick, discusses iCal and Calendar Publishing capabilities in Exchange Server 2010 SP1
High Availability - Astrid McClean, discusses High Availability enhancements in Exchange Server 2010 SP1 – specifically Continuous Replication Block Mode.
Management and Coexistence
Evan Dodds, discusses management experience and capabilities of On-Premises Exchange and Exchange Online together.
Personal Archives - Kamal Janardhan, discusses new capabilities of Personal Archive in Exchange Server 2010 SP1
OWA Themes - Kartik Murthy, discusses Outlook Web App (OWA) Themes capability in Exchange Server 2010 SP1
Upgrading to Exchange 2010 - Kristian Andaker, discusses benefits of Upgrading to Exchange Server 2010. Kristian also expands on upgrade process and the use of Legacy namespace in an Exchange 2003 / 2007 upgrade to Exchange Server 2010.
Site Resiliency - Kumar Venkateswar, discusses new enhancements to Site Resiliency scenarios with Exchange Server 2010 SP1.
Exchange ActiveSync and Mobility - Yan Esteve Balducci, discusses new capabilities in Exchange Active Sync with Exchange Server 2010 SP1. Yan also demonstrates new Outlook Mobile experience with SP1 update.